Method and apparatus for improving the operation of a hot water

Details Method and apparatus for improving the operation of a hot water Method and apparatus for improving the operation of a hot water

1986-10-08

1987-04-07

Davis, Jr., Albert W.

Power plants

Motive fluid energized by externally applied heat

Process of power production or system operation

60651, 60671, 60721, 622384, F01K 2508

Patent

active

046550429

ABSTRACT:
A portion of the thermal energy in the hot water in a domestic hot water heater is transferred by a heat exchanger to a fluid, such as FREON 11, in a closed pipe circuit. The temperature-pressure characteristics of the fluid are selected so that as the fluid is heated, it evaporates. In its heated, pressurized, gaseous state the fluid drives a turbine. Upon exhausting from the turbine, the fluid is condensed in a heat exchanger cooled by the cold water supply to the heater. The residual heat in the exhaust gas from the turbine serves to raise the temperature of the cold water entering the heater.

REFERENCES:
patent: 2721728 (1955-10-01), Higgins
patent: 2869332 (1959-01-01), Keller
patent: 3394555 (1968-07-01), La Fleur
patent: 4512157 (1985-04-01), Weadock

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